package org.framework.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.Properties;

/**
 * @Author xuelongjiang
 */
public class PropsUtil {


    private static final Logger LOGGER = LoggerFactory.getLogger(PropsUtil.class);


    /**
     * 加载属性文件
     */
     public static Properties loadProps(String fileName){

         Properties pros = null;
         InputStream in = null;

         try {
             in = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
             if(in == null){
                 throw  new FileNotFoundException(fileName+"file is not found");
             }
             pros = new Properties();
             pros.load(in);

         }catch (Exception e){
                LOGGER.error("load properties file failure",e);
         }finally {

             if(in != null){
                 try {
                     in.close();
                 }catch (Exception e){
                    LOGGER.error("close inputStream failure",e);
                 }
             }

         }
         return pros;


     }


    /**
     * 获取 字符属性 默认值为 空
     */
    public  static String getString(Properties props,String key){

        return getString(props,key,"");

    }


    /**
     * 获取 字符型属性
     */

    public static String getString(Properties props,String key,String defaultValue){

        String value = defaultValue;
        if(props.containsKey(key)){
            value = props.getProperty(key);
        }
        return value;
    }


    /**
     * 获取数值型属性  默认值为 0
     *
     */
    public static  int getInt(Properties props,String key){

        return  getInt(props,key,0);

    }


    /**
     * 获取数值型属性 默认值
     */
    public static int getInt(Properties props,String key,int defaultValue){

        int value = defaultValue;
        if(props.containsKey(key)){
            value = Integer.valueOf(props.getProperty(key));
        }
        return value;

    }

    /**
     * 获取布尔值 默认为 false
     */
    public static boolean getBoolean(Properties props,String key){
        return getBoolean(props,key,false);
    }


    /**
     * 获取 布尔值
     */
    public static boolean getBoolean(Properties props,String key,boolean defaultValue){


        boolean value = defaultValue;
        if(props.containsKey(key)){
            value = Boolean.valueOf(props.getProperty(key));
        }
        return value;
    }




}
